Jim O'Brien (M 70)
| Race | Date | Distance | Result | Overall Place |
Gender Place |
|
|---|---|---|---|---|---|---|
| 1991 | ||||||
| Wasatch 100 (UT) | 09/14/91 | 100 Miles | 22:55:50 | 1 | 1 | |
| San Jacinto Wilderness Run (CA) | 07/20/91 | 32.5 Miles | 5:07:00 | 1 | 1 | |
| 1990 | ||||||
| Leadville Trail (CO) | 08/18/90 | 100 Miles | 17:55:57 | 1 | 1 | |
| 1989 | ||||||
| Angeles Crest (CA) | 09/30/89 | 100 Miles | 17:35:48 | 1 | 1 | |
| Ledson Marsh (CA) | 01/28/89 | 50 Miles | 6:30:38 | 1 | 1 | |
| 1988 | ||||||
| Western States 100 (CA) | 06/25/88 | 100 Miles | 18:33:49 | 9 | 9 | |
| 1987 | ||||||
| Angeles Crest (CA) | 09/26/87 | 100 Miles | 19:51:47 | 3 | 3 | |
Jim O'brien (M 56)
| Race | Date | Distance | Result | Overall Place |
Gender Place |
|
|---|---|---|---|---|---|---|
| 2018 | ||||||
| Chuckanut 50k (WA) | 03/17/18 | 50 KM | 7:07:26 | 313 | 203 | |
| 2017 | ||||||
| Mt. Hood Races (OR) | 07/09/17 | 50 KM | 5:42:30 | 55 | 28 | |
| 2002 | ||||||
| Cle Elum Ridge (WA) | 09/21/02 | 50 KM | 5:10:24 | 7 | 7 | |
| Bridle Trails Winter Trail Running Festival (WA) | 01/12/02 | 50 KM | 4:46:48 | 1 | 1 | |
Jim O'Brien (M 44)
| Race | Date | Distance | Result | Overall Place |
Gender Place |
|
|---|---|---|---|---|---|---|
| 2011 | ||||||
| Burning River (OH) | 07/30/11 | 100 Miles | 20:23:45 | 13 | 10 | |
| Ice Age Trail (WI) | 05/14/11 | 50 Miles | 7:51:31 | 13 | 12 | |
| Mad City (WI) | 04/09/11 | 50 KM | 3:27:08 | 1 | 1 | |
| 2010 | ||||||
| The HUFF 50K Trail Run & Relay (IN) | 12/18/10 | 50 KM | 4:05:07 | 6 | 6 | |
| Javelina Jundred (AZ) | 10/23/10 | 100 Miles | 19:28:10 | 5 | 4 | |
| Virgil Crest (NY) | 09/25/10 | 50 Miles | 9:42:00 | 1 | 1 | |
| Des Plaines River Trail Races (IL) | 05/22/10 | 50 Miles | 6:48:27 | 2 | 2 | |
| Delano Park (AL) | 03/13/10 | 12 Hours | 76 | 1 | 1 | |
| 2009 | ||||||
| Tuscobia Winter Ultra (WI) | 12/19/09 | 50 KM | 5:00:00 | 1 | 1 | |
| Dances with Dirt - Hell (MI) | 09/12/09 | 50 Miles | 10:27:30 | 13 | 12 | |
Jim O'Brien (M 62)
| Race | Date | Distance | Result | Overall Place |
Gender Place |
|
|---|---|---|---|---|---|---|
| 2009 | ||||||
| Marquette Trail 50 (MI) | 08/23/09 | 50 KM | 5:00:41 | 5 | 5 | |
| 2000 | ||||||
| Siskiyou Out Back (OR) | 07/08/00 | 50 KM | 5:55:25 | 57 | 46 | |
Jim Obrien (M 67)
| Race | Date | Distance | Result | Overall Place |
Gender Place |
|
|---|---|---|---|---|---|---|
| 2014 | ||||||
| The North Face Endurance Challenge California (CA) | 12/06/14 | 50 KM | 7:27:40 | 373 | 249 | |
| 2012 | ||||||
| The North Face Endurance Challenge New York (NY) | 05/05/12 | 50 KM | 7:20:41 | 143 | 113 | |
| 2011 | ||||||
| The North Face Endurance Challenge New York (NY) | 05/07/11 | 50 KM | 7:57:05 | 162 | 129 | |
